21011020

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{5869}}^1$

素因数の和:6057

約数の個数: 24

約数和(自身を含む): 44377200

約数和(自身を除く): 23366180

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 3580, 5869, 11738, 23476, 29345, 58690, 117380, 1050551, 2101102, 4202204, 5252755, 10505510, 21011020]

約数ペア:

[(1, 21011020), (2, 10505510), (4, 5252755), (5, 4202204), (10, 2101102), (20, 1050551), (179, 117380), (358, 58690), (716, 29345), (895, 23476), (1790, 11738), (3580, 5869)]